title: Mucoid impaction of the bronchi caused by Mycobacterium avium.
abstract: A 25-year-old woman with a past history of congenital adrenal cortex hypertrophy visited our hospital complaining of a continuous cough. On chest CT, a localized bronchiectatic lesion was recognized with mucoid impaction in the right lower lobe. Because we obtained a positive smear test for acid-fast bacilli and polymerase chain reaction (PCR) of the bronchoscopic specimens was positive for M. avium, we administered combined chemotherapy; however, the clinical effect was poor and video-assisted thoracoscopic surgery (VATS) was performed. As the histological findings revealed a granuloma with caseating necrosis and mucous plugs containing M. avium in the respiratory bronchioles, we diagnosed the patient with mucoid impaction of the bronchi (MIB) due to M. avium.
authors.affiliation: Department of Respiratory Medicine, Kawasaki Medical School, Japan. yoshihiro@med.kawasaki-m.ac.jp
authors.forename: Yoshihiro
authors.initials: Y
authors.lastname: Kobashi
authors.forename: Keiji
authors.initials: K
authors.lastname: Mouri
authors.forename: Yasushi
authors.initials: Y
authors.lastname: Obase
authors.forename: Shigeki
authors.initials: S
authors.lastname: Kato
authors.forename: Masao
authors.initials: M
authors.lastname: Nakata
authors.forename: Mikio
authors.initials: M
authors.lastname: Oka
mesh_terms: D000328:Adult; D001980:Bronchi / Q000382:microbiology / Q000473:pathology*; D005260:Female; D006801:Humans; D009162:Mycobacterium avium; D015270:Mycobacterium avium-intracellulare Infection / Q000150:complications / Q000175:diagnosis*; D020545:Respiratory Mucosa / Q000382:microbiology / Q000473:pathology*